Portion of a shoe upper



FIG. 1 is a front perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side view thereof.

The uneven broken lines immediately adjacent to the shaded areas represent unclaimed boundaries of the design. The broken lines showing of the generally oblong shapes within the claim area representing eyelets and of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 